pelvic fin

noun

Definition of pelvic fin 

: one of the paired fins of a fish that are homologous with the hind limbs of a quadruped

Examples of pelvic fin in a Sentence

Recent Examples on the Web

Some have looked at coelacanths and sarcopterygians, or lungfish (the latter use their pelvic fins to move in a motion like walking). Lorraine Boissoneault, Smithsonian, "What a Walking Fish Can Teach Us About Human Evolution," 9 Feb. 2018 Typically, these pectoral and pelvic fins — which correspond to forelimbs and hindlimbs in land vertebrates — are small and largely used for balance and steering. Steph Yin, New York Times, "These Skates Are Made for Walking," 8 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pelvic fin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of pelvic fin

1882, in the meaning defined above

Keep scrolling for more

Learn More about pelvic fin

Share pelvic fin

Statistics for pelvic fin

Look-up Popularity

Time Traveler for pelvic fin

The first known use of pelvic fin was in 1882

See more words from the same year

More from Merriam-Webster on pelvic fin

See words that rhyme with pelvic fin

Comments on pelvic fin

What made you want to look up pelvic fin? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

not any or not one

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!